Automobile door lock



Feb. 27, 1940.

E. c. BODE AUTOMOBILE DOOR LOCK Filed Feb. 20, 1939 Min r02 foya afio a Patented Fag 21, 1940 PATENT- OFFICE 2,191,131 7 AUTOMOBILE noon LOCK Ed ar-o. Bode, Oourtl and. Minn. I Application February 20, 1939. Serial No. 257,385 s Claima- (01.. zoz-ih l p My invention relates to new and improved automobile door locksand particularly refers to the improvement in the construction of. a safety means'of operation. 4 1

5 It is now thegeneral' practice to equip automobile doors wi manually operated pivotal -con-.

g from the door the handle usually being carried on a horizontal pivotal shaft trol handles pro mounted transversely within the said automobile in door and the operation thereof calls for a. downward turning movement of thehandle' by the lnlgletrator to actuate said releasement of latch As has been the case, minor children in automobiles are often prone to play with these handles, imintentionally releasing said latch by downward pressure thus throwing open the door and many times when the car'is in-motion expelling the occupant having a gripupon the go handle. '1.

- My invention resides furthermore in an automobile door latch in which a direct pressure toward the door is required to release means as will be hereinafter more fully set forth. In the as drawing,

Figure 1 is a perspective view of an automobile showing an automobile door embodying my form of invention. a t

Figure 2 is a vertical plan view of locking 30 mechanism of an automobile door with part of the outer face or side of the door removed.

Figure 3 is a horizontal constructional section taken along the lines of 3-3 of Figure 2.

In theifdrawing, A represents an automobile of 35 which B is the door pivotally suspended upon hinges C and provided with a handle grip or. pull D on the exterior of the car door for the opening;

of'said door when latch releasing pressure has been placed Snpon the exterior push rod knob i9. Referring automobile door B of which F is the exterior face and G- the interior structural facing, the latching assembly is. imposed between said door fac-' .50 vided with a back turned flange 3 to correspond with the construction and thickness of the door proper at its jamb edge '4. The upturned edge 2 is provided with an opening 5 of sufiicient size to permit the free in and 55 out travel of latch bolt 6. The latch bolt sup- 0 the latch mechanism, fully shown in Figure 2 and representing a portion of an porting mechanism plate H at its interior extremity is further provided with an upturned guide edge 1 and a terminating guide lip 8 to ,properly align sliding latch bolt support 9.

Latch bolt 6 is made rigidly fast .to the sliding 6 "latch bolt Support 9 by fastening means l0 thus forming a'sliding latch bolt unit J which is further prbvidedwith an upturned stop finger J2 to abut unto the end of the backturned flange '3,'thereby arresting any further outward travel 10 of the latch bolt 6.

Upon the lower end of the latch bclt-support-' ing mechanism plate Hispositioned a spaced apart spring retainer K of common construction rigidly supporting spring Sin permanent locked position at its inner loop end and permitting spring fingers SI to contact an inward projected finger Jl so as to keep latch bolt 6 and its associated sliding unit J constantly positioned in its extreme projection.

Likewise upon the plate G is made fast a. roller standard R with an upright roller supporting member RI holding spring tape guiding roller H interspaced between the fork of the supporting member RI upon the shaft T.

The spring steel tape is made rigidly fast at one end to the sliding latch bolt unit J at E2 and thence extending over the spring tape guiding roller I l and down past the operating mechanism to a fastening point 13 upon plate G thus limit- ,ing the outward travel of the bolt because of the crum support on a doubled bearing shaft' M posi- .35

tioned in a doubled bearing standard Y which is made fast upon plate (3-. The fulcrumed shaft It supports a rocker arm l5 which is rockably linked through a pivot shaft it to a plunger rod 11 which passes through the plate G and is stayed 40 in alignment by a plunger od supporting guide It. Plunger rod support guide it acts as a buffer and a travel limit for the push rod knob I9 which is made fast at the outer terminal of the push rod l'l.

Rocker arm H5 at its .latch extremity is bent away from and thence over the spring steel limit tape X and provided at its end with a fork 20 as a means of support for the tension roller 2i which is rotatably mounted upon a fixed shaft 24 held positioned in the fingers 22 and 23.

Imposed on the rocker arm I 5 between the fork 2t and the rocker arm support 14 is positioned the exterior latch controlling plunger rod 26. The

exterior latch controlling plunger red as is con iii) nected in a linked nner to the rocker arm 95 by a rocker shaft 25. Like the plunger rod H, the exterior latch controlling plunger rod 26 passes through the exterior door plate F and is stayed in alignment by a plunger rod guide 3 ,shaft 54. Said pressure will cause fork arm and its supporting tension roller 2i to push the said tension roller against the spring steel tape X and bend the said spring steel tape, thereby foreshortening the distance between the terminal fastenings of said-tape.

Since one end of said steel spring tape is made rigidly fast to the door structure proper and the other end connected to the sliding latch bolt unit J, the said foreshortening by bending of the spring steel tape will cause the latch bolt unit J to be pulled back and thus withdrawing the latch bolt 6 which is the terminating meinber of the said latch bolt unit from looking position and thereby releasing said door for a swinging operation.

The door swinging motion is imparted from the exterior by a pull upon hand grip D after the releasement of the latch, while irom the interior of the automobile a further push upon the push rod mob will actuate the opening of the door.

I cl:

arenas? i. in combination with a door and frame theredoor sustained spring tensioned and controlled latch bolt cooperating with looking engagement with the door frame, a latch tape made last to the 5 latch bolt and to said door, a roller sustaining means for the tape, a rocker arm supported by said door and operative upon said latch tape, said rocker am being provided with slidable push arm operating means on opposite door sides for the foreshortening of the normal distance between the faste'nings of the latch operating tape.

2. In combination with a door and a door frame therefor, a locking means for said door comprising a spring tensioned latch bolt supported by 15 said door and slidable into locking engagement with the frame, a latch retracting tape connecting the latch bolt and said door, a suspended roller carrying means for the tape, a rocker arm supported by said door, a tension roller supported on the free end of said rocker arm and operative upon said tape by the moving of said rockerarm from either door side to foreshorten the normal distance between the latch tape fastenings so as to withdraw the latch from looking position.

3. In combination with a. door and a supporting frame therefor, a lockingmeans for said door comprising a slidable latch bolt supported by said .door and slidable into locking engagement with EDGAR c. Bonn. 

